I've had fuck you money for a few years in illiquid form. But this year is the first year I started selling stock and crypto and pushed my checking account into seven figures. The psychological impact of that is quite huge.
Its not just about being able to say fuck you ... I have always done that. There's a peace of mind that comes from knowing that no matter what happens to me, my kids have enough cash just sitting there to eat, get health care, and pay for their education ... until they are old enough to handle things on their own.